A182236 T(n,k)=Number of n X n 0..n+k-2 arrays with new values 0 upwards introduced in row major order and every value unique in its row and column

1, 1, 1, 1, 3, 2, 1, 4, 44, 24, 1, 4, 230, 4920, 1344, 1, 4, 464, 190452, 6050304, 1128960, 1, 4, 569, 1760316

Offset

1,5

Comments

Table starts

.......1.......1......1.......1...1.1.1

.......1.......3......4.......4...4.4

.......2......44....230.....464.569

......24....4920.190452.1760316

....1344.6050304

.1128960

Links

Table of n, a(n) for n=1..25.

Example

Some solutions for n=4 k=4
..0..1..2..3....0..1..2..3....0..1..2..3....0..1..2..3....0..1..2..3
..1..2..0..4....1..0..3..4....2..3..1..4....1..0..3..4....2..3..1..0
..4..5..1..0....4..2..5..0....4..0..5..6....2..3..1..5....4..5..3..2
..2..6..3..5....5..3..4..6....5..4..0..1....6..2..4..0....1..6..4..5

Crossrefs

Sequence in context: A156699 A245183 A262347 * A077819 A030313 A300219

Adjacent sequences: A182233 A182234 A182235 * A182237 A182238 A182239

Keyword

nonn,tabl

Author

R. H. Hardin Apr 20 2012

Status

approved